<template>
     <section class="loginContainer">
      <div class="loginInner">
        <div class="login_header">
          <h2 class="login_logo">硅谷外卖</h2>
          <div class="login_header_title">
            <a href="javascript:;" :class="{on:isLoginPhone}" @click="isLoginPhone = true">短信登录</a>
            <a href="javascript:;" :class="{on:!isLoginPhone}" @click="isLoginPhone = false">密码登录</a>
          </div>
        </div>
        <div class="login_content">
          <form>
            <div :class="{on:isLoginPhone}">
              <section class="login_message">
                <input type="tel" maxlength="11" placeholder="手机号" v-model="phone">
                <button :disabled="!isRightPhone" :class="{black:isRightPhone}" class="get_verification" @click.prevent="getCode">
                  {{computedTime>0 ?`还剩${computedTime}秒` :'获取验证码'}}
                  </button>
              </section>
              <section class="login_verification">
                <input type="tel" maxlength="8" placeholder="验证码" v-model="code">
              </section>
              <section class="login_hint">
                温馨提示：未注册硅谷外卖帐号的手机号，登录时将自动注册，且代表已同意
                <a href="javascript:;">《用户服务协议》</a>
              </section>
            </div>
            <div :class="{on:!isLoginPhone}" >
              <section>
                <section class="login_message">
                  <input type="tel" maxlength="11" placeholder="手机/邮箱/用户名" v-model="name" >
                </section>
                <section class="login_verification">
                  <input type="password" maxlength="8" placeholder="密码" v-model="pwd" v-if="!isrightPwd"> <!--默认isrightPwd为false 取反则为true 默认input为密码框 不可见输入内容-->
                   <input type="text" maxlength="8" placeholder="密码" v-model="pwd" v-else>
                  <div class="switch_button" @click="isrightPwd=!isrightPwd" :class="isrightPwd?'on':'off'"> <!--当isrightPwd为true则添加类为on 为false则添加off 点击时 isrightPwd取反 本来为false 点击后变为true 再点击变为false-->
                    <div class="switch_circle" :class="isrightPwd?'right':''"></div> <!--如果为true则添加right类 为false则不添加-->
                    <span class="switch_text">{{isrightPwd?'abc':'...'}}</span><!--如果为true则内容变为abc 为false则变为...-->
                  </div>
                </section>
                <section class="login_message">
                  <input type="text" maxlength="11" placeholder="验证码" v-model="captcha">
                  <img class="get_verification" @click="getCaptcha" src="http://localhost:4000/captcha" alt="captcha">
                </section>
              </section>
            </div>
            <button class="login_submit" @click.prevent="login">登录</button>
          </form>
          <a href="javascript:;" class="about_us">关于我们</a>
        </div>
        <a href="javascript:" class="go_back" @click="$router.back()">
          <i class="iconfont icon-jiantou2"></i>
        </a>
      </div>
      <AlertTip :alertText="msg" v-show="showAlert" @closeTip="mycloseTip"   ></AlertTip>
    </section>
</template>

<script>
import {reqSendCode,reqPwdLogin,reqSmsLogin} from '../../api/index'
import AlertTip from '../../components/AlertTip/AlertTip'
export default {
    props: {

    },
    data() {
        return {
            isLoginPhone:true,//切换登录方式
            phone:'',//手机号
            code:'',//手机短信验证码
            pwd:'',//密码
            name:'',//用户名
            captcha:'',//图形验证码
            computedTime:0, //计算时间
            isrightPwd:false,//默认为密码不可见
            msg:'', //消息提示
            showAlert:false //控制弹框是否打开
        };
    },
    computed: {
      isRightPhone(){

        return /^1\d{10}$/.test(this.phone) //如果输入的手机号满足正则 则返回true
        // 则获取验证码可以点击 disabled为false
      }
    },
    created() {

    },
    mounted() {

    },
    watch: {

    },
    methods: {
      // 打开弹框
      showAlt(text){
        this.showAlert = true //当它为true时 弹框打开
        this.msg = text //每次调用showAlt时 传值给它 然后会赋值给msg 传值给AlertTip
      },
      // 
      // 关闭弹框
      mycloseTip(){
        this.showAlert = false
      },


      // 1获取手机短信验证码
      async  getCode(){
          // alert(1)
          // 点击之后进行倒计时(发送验证码)
         if(!this.computedTime){ //当computedTime为0时 布尔值为false 取反为true 才能重新进入定时器 
                                 //  否则当定时器开启时，computedTime值不为0 布尔值为true 取反为false无法再次进入倒计时
            this.computedTime=30
            this.Interval =  setInterval(() => {
                this.computedTime--
                if (this.computedTime<=0) {
                  clearInterval(this.Interval)
                }
              }, 1000);
            }
            // 发送ajax请求 拿到验证码
           let result = await  reqSendCode(this.phone)
           if (result.code==1) { //为1代表发送失败
              console.log(result.msg);
           }
         },
        // 2 获取图形验证码
        getCaptcha(event) {
            // 服务器会缓存 所以加上时间 时间每次都不一样 就会重新发送
            // 每次点击图形验证码 都重新给src赋值 重新发送请求 更换图片
            event.target.src="http://localhost:4000/captcha?time="+Date.now()
        },
        // 3 登录提交时间功能开发
       async login(){
            let result
            // 先判断登录方式
            // 解构一下
            let {isLoginPhone,phone,code} = this
            if (isLoginPhone) { //表示为手机验证码登录
                if (!phone) { //phone不存在 提示
                  this.showAlt('手机号不能为空')
                  return false
                }
                if (!code) {
                   this.showAlt('验证码输入不正确')
                   return false
                }

                // 手机验证码登录发送
                 result =await reqSmsLogin(phone,code)
                console.log(result);
                
            }else { //表示用户名密码登录
                let {name,pwd,captcha} = this
                if (!name) { //phone不存在 提示
                  this.showAlt('用户名不能为空')
                  
                  return false
                }
                if (!pwd) {
                   this.showAlt('密码输入不正确')
                   return false
                }
                if (!captcha) { //phone不存在 提示
                  this.showAlt('图形验证码不正确')
                  return false
                }

                result = await reqPwdLogin(name,pwd,captcha)
                console.log(result);

            }
            if(result.code==0){
                // 拿到结果存储到vuex里面去
              this.$store.dispatch('recordUser',{userInfo:result.data})
              this.$router.replace('/profile')
            }
             

        }
    },
    components: {
        AlertTip

    },
};
</script>

<style scoped lang='stylus' >
    .loginContainer
      width 100%
      height 100%
      background #fff
      .loginInner
        padding-top 60px
        width 80%
        margin 0 auto
        .login_header
          .login_logo
            font-size 40px
            font-weight bold
            color #02a774
            text-align center
          .login_header_title
            padding-top 40px
            text-align center
            >a
              color #333
              font-size 14px
              padding-bottom 4px
              &:first-child
                margin-right 40px
              &.on
                color #02a774
                font-weight 700
                border-bottom 2px solid #02a774
        .login_content
          >form
            >div
              display none
              &.on
                display block
              input
                width 100%
                height 100%
                padding-left 10px
                box-sizing border-box
                border 1px solid #ddd
                border-radius 4px
                outline 0
                font 400 14px Arial
                &:focus
                  border 1px solid #02a774
              .login_message
                position relative
                margin-top 16px
                height 48px
                font-size 14px
                background #fff
                .get_verification
                  position absolute
                  top 50%
                  right 10px
                  transform translateY(-50%)
                  border 0
                  color #ccc
                  font-size 14px
                  background transparent
                  &.black
                   color black 
              .login_verification
                position relative
                margin-top 16px
                height 48px
                font-size 14px
                background #fff
                .switch_button
                  font-size 12px
                  border 1px solid #ddd
                  border-radius 8px
                  transition background-color .3s,border-color .3s
                  padding 0 6px
                  width 30px
                  height 16px
                  line-height 16px
                  color #fff
                  position absolute
                  top 50%
                  right 10px
                  transform translateY(-50%)
                  &.off
                    background #fff
                    .switch_text
                      float right
                      color #ddd
                  &.on
                    background #02a774
                  >.switch_circle
                    //transform translateX(27px)
                    position absolute
                    top -1px
                    left -1px
                    width 16px
                    height 16px
                    border 1px solid #ddd
                    border-radius 50%
                    background #fff
                    box-shadow 0 2px 4px 0 rgba(0,0,0,.1)
                    transition transform .3s
                    &.right 
                      transform translateX(27px)
              .login_hint
                margin-top 12px
                color #999
                font-size 14px
                line-height 20px
                >a
                  color #02a774
            .login_submit
              display block
              width 100%
              height 42px
              margin-top 30px
              border-radius 4px
              background #4cd96f
              color #fff
              text-align center
              font-size 16px
              line-height 42px
              border 0
          .about_us
            display block
            font-size 12px
            margin-top 20px
            text-align center
            color #999
        .go_back
          position absolute
          top 5px
          left 5px
          width 30px
          height 30px
          >.iconfont
            font-size 20px
            color #999
</style>
